Question

1. which of the following is a disease caused by a bacterial pathogen against which children are currently vaccinated?

smallpox

pertussis

chickenpox

polio

Explanation:

• Smallpox is caused by a virus (variola virus) and vaccination for it is not commonly given now as the disease is eradicated.
• Pertussis (whooping cough) is caused by the bacterium Bordetella pertussis and there is a current vaccine (DTaP or Tdap) for children.
• Chickenpox is caused by the varicella - zoster virus and has a vaccine, but it's a viral disease.
• Polio is caused by the poliovirus and has a vaccine, but it's a viral disease.

Answer:

pertussis